package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomerException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.mapper.DishMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;

    @Override
    public void DeleteById(Long id) {
        QueryWrapper<Dish> queryWrapper1 = new QueryWrapper<>();
        queryWrapper1.eq("category_id",id);
        int count = dishService.count(queryWrapper1);
        if (count > 0){
            throw new CustomerException("删除失败，该分类下有关联菜品！");
        }

        QueryWrapper<Setmeal> queryWrapper2 = new QueryWrapper<>();
        queryWrapper2.eq("category_id",id);
        count = setmealService.count(queryWrapper2);
        if (count > 0){
            throw new CustomerException("删除失败，该分类下有关联套餐！");
        }

        super.removeById(id);
    }
}
